From patchwork Fri Mar 24 19:19:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Tatashin X-Patchwork-Id: 743355 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3vqYNM13RRz9s7F for ; Sat, 25 Mar 2017 06:27:47 +1100 (AEDT) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3vqYNM0HTkzDr0J for ; Sat, 25 Mar 2017 06:27:47 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3vqYD3623DzDqZS for ; Sat, 25 Mar 2017 06:20:35 +1100 (AEDT) Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v2OJK0rp001208 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Fri, 24 Mar 2017 19:20:00 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0021.oracle.com (8.13.8/8.14.4) with ESMTP id v2OJJxUv027162 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Fri, 24 Mar 2017 19:20:00 GMT Received: from abhmp0018.oracle.com (abhmp0018.oracle.com [141.146.116.24]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id v2OJJw24017240; Fri, 24 Mar 2017 19:19:58 GMT Received: from ca-ldom103.us.oracle.com (/10.129.68.23) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 24 Mar 2017 12:19:58 -0700 From: Pavel Tatashin To: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, borntraeger@de.ibm.com, heiko.carstens@de.ibm.com, davem@davemloft.net, willy@infradead.org Subject: [v2 1/5] sparc64: simplify vmemmap_populate Date: Fri, 24 Mar 2017 15:19:48 -0400 Message-Id: <1490383192-981017-2-git-send-email-pasha.tatashin@oracle.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1490383192-981017-1-git-send-email-pasha.tatashin@oracle.com> References: <1490383192-981017-1-git-send-email-pasha.tatashin@oracle.com> X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Remove duplicating code, by using common functions vmemmap_pud_populate and vmemmap_pgd_populate functions. Signed-off-by: Pavel Tatashin Reviewed-by: Shannon Nelson --- arch/sparc/mm/init_64.c | 23 ++++++----------------- 1 files changed, 6 insertions(+), 17 deletions(-) diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 2c0cb2a..01eccab 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2526,30 +2526,19 @@ int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, vstart = vstart & PMD_MASK; vend = ALIGN(vend, PMD_SIZE); for (; vstart < vend; vstart += PMD_SIZE) { - pgd_t *pgd = pgd_offset_k(vstart); + pgd_t *pgd = vmemmap_pgd_populate(vstart, node); unsigned long pte; pud_t *pud; pmd_t *pmd; - if (pgd_none(*pgd)) { - pud_t *new = vmemmap_alloc_block(PAGE_SIZE, node); + if (!pgd) + return -ENOMEM; - if (!new) - return -ENOMEM; - pgd_populate(&init_mm, pgd, new); - } - - pud = pud_offset(pgd, vstart); - if (pud_none(*pud)) { - pmd_t *new = vmemmap_alloc_block(PAGE_SIZE, node); - - if (!new) - return -ENOMEM; - pud_populate(&init_mm, pud, new); - } + pud = vmemmap_pud_populate(pgd, vstart, node); + if (!pud) + return -ENOMEM; pmd = pmd_offset(pud, vstart); - pte = pmd_val(*pmd); if (!(pte & _PAGE_VALID)) { void *block = vmemmap_alloc_block(PMD_SIZE, node);